[8] It is not hereby intended to depreciate the services rendered the community by the captain of industry in his management of business. Such services are no doubt rendered and are also no doubt of substantial value. Still less is it the intention to decry the pecuniary incentive as a motive to thrift and diligence. It may well be that the pecuniary traffic which we call business is the most effective method of conducting the industrial policy of the community; not only the most effective that has been contrived, but perhaps the best that can be contrived. But that is a matter of surmise and opinion. In a matter of opinion on a point that can not be verified, a reasonable course is to say that the majority are presumably in the right. But all that is beside the point. However probable or reasonable such a view may be, it can find no lodgment in modern scientific theory, except as a corollary of secondary importance. Nor can scientific theory build upon the ground it may be conceived to afford. Policy may so build, but science can not. Scientific theory is a formulation of the laws of phenomena in terms of the efficient forces at work in the sequence of phenomena. So long as (under the old dispensation of the order of nature) the animistically conceived natural laws, with their God-given objective end, were considered to exercise a constraining guidance over the course of events whereof they were claimed to be laws, so long it was legitimate scientific procedure for economists to formulate their theory in terms of these laws of the natural course; because so long they were speaking in terms of what was, to them, the efficient forces at work. But so soon as these natural laws were reduced to the plane of colorless empirical generalization as to what commonly happens, while the efficient forces at work are conceived to be of quite another cast, so soon must theory abandon the ground of the natural course, sterile for modern scientific purposes, and shift to the ground of the causal sequence, where alone it will have to do with the forces at work as they are conceived in our time. The generalisations regarding the normal course, as "normal" has been defined in economics since J. S. Mill, are not of the nature of theory, but only rule-of-thumb. And the talk about the "function" of this and that factor of production, etc., in terms of the collective life purpose, goes to the same limbo; since the collective life purpose is no longer avowedly conceived to cut any figure in the every-day guidance of economic activities or the shaping of economic results.